Home / 175,211.10-262,816.65-81,726.30

Finding the Fourth Proportional to 175,211.10, 262,816.65 and 81,726.30

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Solution

The fourth proportional to 175,211.10, 262,816.65 and 81,726.30 is: 122,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,211.10 : 262,816.65 = 81,726.30 : x
  2. Step 2: Convert to fraction form
    175,211.10/262,816.65 = 81,726.30/x
  3. Step 3: Cross multiply
    175,211.10x = 262,816.65 × 81,726.30
  4. Step 4: Simplify right side
    175,211.10x = 21,479,032,382.90
  5. Step 5: Solve for x
    x = 21,479,032,382.90/175,211.10
  6. Step 6: Final answer
    x = 122,589.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.